Percussive firing mechanism.



A. T. DAWSON & G. T. BUGKHAM.

PEROUSSIVE FIRING MECHANISM.

APPLICATION FILED APR. 6, 1914.

Patented Aug. 4, 1914.

2 SHEBTSSHEET 1.

"" NORRIS. PETERS CO, PHOTOLITHO" WASHINGTON. D. C,

A. T. DAWSON & G. T. BUGKHAM.

PERGUSSIVE FIRING MECHANISM.

APPLICATION FILED APR.8, 1914.

Patented Aug. 4, 1914.

2 SHEE] 8-8311 2.

AR HUR 'TREVOR DAWSON AND GEORGE THoM'AsBiIcKHAi/i, OF WESTMINSTER,

LONDON, ENGLAND, ASSIGNORS To VICKERS LIMITED, OF WESTMINSTER, ENG- LAND.

PERCUSSIVE FIRING MECHANISM.

Specification of Letters Patent.

Original application filed October 18, 1913, Serial No. 795,854. Divided and this a lication filed April 6,

To all whom it may concern:

Be it known that we, ARTHUR TREVOR DAWSON, knight, and GEORGE THOMAS BUCK- HAM, both subjects of the King of Great Britain, residing at Vickers House, Broadway, Westminsten'in the county of'London, England, have invented certain new and useful Improvements in Percussive Firing Mechanism, of which the following is a specification.

This invention relates to percussive firing mechanism for breech loading guns, of the kind in which the striker is released by a trigger or firing handle mounted on the gun carriage.

The chief object of the present invention is to provide improved means whereby the trigger or firing handle can be mounted on a part of the carriage which is not coaxial with the gun trunnions, and the operative relationship between the said trigger or handle and the striker can be maintained notwithstanding the movements of the gun in elevation or depression.

In order that the said invention may be clearly understood and readily carried into effect, we will describe the same more fully with reference to the accompanying drawings, in which Figures 1, 2 and 3 are respectively a side elevation, a partial sectional plan, and a rear elevation showing a constructional form of the invention in which the trigger is carried on the handle of the elevating hand wheel or lever.

A is the gun, B the gun cradle, B one ofthe trunnions and C the gun carriage.

D represents the aforesaid device which is pivoted at cl to the cradle.

D is the trigger or firing handle and D the firing shaft.

E is the elevating hand wheel or lever.

In the example shown, the aforesaid device D is in the form of a curved plate the pivot d of which is arranged parallel to the trunnions and in front thereof when the gun is horizontal.

The firing trigger D is carried on thehandle of the elevating hand wheel or lever E which is mounted on the gun carriage. The said trigger operates through the known arrangement of a sliding pin (i a lever 01 and another sliding pin 03 upon an arm d on a vertical shaft d mounted on the Serial No. 829,828.

carriageg This shaft: has anotherarm 6Z that carries a roller d for engaging with the curved plate D. A rod-D is connected Patented Aug. (I, 1914. I

to the curved plate D and to a link d which is in loose contact with a firing arm D on the gun. The rod D is controlled by a spring D to hold the parts in the position shown in the drawings.

What we claim and desire to secure by:

Letters Patent of the United States is I 1. In percussive firing mechanism for ord-.

nance, the combination with a non-elevating part of the mounting and the gun cradle, of an elevating device on said non-elevating part, a firing trigger on said elevating device, a curved member moved by said trigger and pivotally mounted on the cradle in coaxial relation with the gun trunnions, a striker releasing member on the gun, and means for establishing an operative relationship between these two members.

2. In aercussive firing mechanism for ordnance, the combination with a non-elevating part of the mounting and the gun cradle, of an elevating device on said non-elevating part, a firing trigger on said elevating device, a curved member moved by said trigger, a pivot for said member carried by the cradle and arranged parallel with the gun trunnions, a striker releasing member on the gun and means for establishing an operative relationship between these two members.

8. In percussive firing mechanism for ordnance, the combination with a non-elevating part of the mounting and the gun cradle, of an elevating device on said non-elevating part, a firing trigger on said elevating device, a curved plate moved by said trigger, a pivot for said plate carried by the cradle and arranged parallel to the gun trunnions, a striker releasing member on the gun, a rod connected to said curved plate and means for connecting said rod to the member on the gun.

4-. In percussive firing mechanism for ordnance, the combination with a non-elevating part of the mounting and the gun cradle, of an elevating device on said non-elevating part, a firing trigger on said elevating device, a sliding rod passing through the axis bears, another arm on said shaft, a rolleron the last mentioned arm, a curved plate. against-Which said roller bears, avpivot fersaid plate carried by the cradle and arranged parallel to the gun trunnions, a striker releasing member on the gun, a rod connected part, a firing trigger on said elevating device, a curved plate moved-by said trigger, a pivot for salidj plate carried by the cradle and; arrangedparallel tothe gun trunnions, a striker releasing arm on ,the g ln, a lever in contact with said arm and means for connecting said lever; ethe-curved plate on' th e cradle.

6., In percussive firing mechanism for 0rdi ce he bina nt withi ar q -i leY tip p of the mounti vmdzth eeuel radla, Of

an elevating device "on said non eleya'tmg part, a, firing trigger on said elevating dcvice, a curved plate moved by sa d tr gger,

apivet for -said plate carried by the-cradle V and arranged Parallel to the gun trunni ns,

astrilrer releasing arm on the'guma lever in contact With said arm, and a rod for com nesting saidlever cradle.

30 t0 the curvedplate 0n the 5 lni testimony';wherecf we aflix our Sign? i tures in presenee Off'tWO wit esses,

ARTHUR TREVOR DAWSON;

'Witnesses :i

N Y-El a; Jno. Ri'GASWELL;

as ingt n P-fiz? 

